ONE POINT SEEMED UNCERTAIN. "ACTION NEWS" ANCHOR MIKE CLARK HAS HER STORY. Reporter: MAKE NO MISTAKE ABOUT IT. THERE IS A RELEASE BUTTON DOWN HERE WHICH IS LIKE REALLY HARD TO SEE. Reporter: THIS IS NOT A BIG DEAL FOR SYDNEY KINNY. PUSH IT IN AND IT COMPLETELY LETS THE LEG GO. Reporter: COLLEGE FRESHMAN IN HER DORM ROOM SHOWING US HOW QUICKLY SHE TAKES OFF AND PUTS ON HER PROSTHETIC LEG. WATCHING HER ON CAMPUS HERE AT INDIANA UNIVERSITY OF PENNSYLVANIA YOU'D NEVER KNOW SHE HAS ANY ISSUE AT ALL. A LOT OF PEOPLE JUST ASSUME THAT IT'S LIKE A KNEE BRACE OR SOMETHING LIKE THAT. Reporter: SHE WALKS LIKE ANY OTHER STUDENT, AND THAT'S EXACTLY THE WAY SHE WANTS IT. SHE WANTS NO PITY, WANTS NO ONE TO FEEL SORRY FOR HER. SHE STAYS POSITIVE MOVING AHEAD IN WHAT SHE CALLS HER SECOND CHANCE. FOR THE FIRST TIME SYDNEY IS TALKING PUBLICLY ABOUT THE HORRIFYING ACCIDENT HERE BACK ON MARCH 20th, 2010. SYDNEY AND HER FRIEND MARISA WERE RIDING TOGETHER ON A BIKE HERE IN WEST MAYFIELD NEAR BEAVER FALLS. WITH SYDNEY ON THE SEAT AND MARISA STANDING UP PEDALING THEY GAINED TOO MUCH SPEED AND CAREENED OVER THE HILLSIDE AND FLEW INTO THE OAK TREE. SHE SLAMMED INTO THE TREE AND I ROLLED DOWN THE HILL, BROKE BOTH OF MY ME MURS, CRACKED A HIP, BROKE MY RIBS, BROKE A ARM, BROKE ALMOST EVERY BONE IN MY FOOT AND I LOST THIS MUCH OF MY TIBIA. THE GIRL SUFFERED SEVERE INJURIES AND WAS RESCUED BY A GENEVA COLLEGE STUDENT. I LITERALLY OWE MY LIFE TO HIM. IF IT WEREN'T FOR HIM, THEN I WOULDN'T BE WHERE I AM NOW, AND GOD PUT HIM THERE FOR A REASON AND I'M STILL HERE FOR A REASON. Reporter: PART OF THAT REASON, TO HONOR HER FRIEND MARISA WHO DIED SIX DAYS LATER FROM BRAIN TRAUMA. SYDNEY COULD NOT ATTEND MARISA'S FUNERAL BECAUSE SHE WAS DEALING WITH SEVERE INJURIES. SHE WAS ON A RESPIRATOR AND REALLY WAS QUITE ILL. Reporter: DR. TIMOTHY WARD SAID SYDNEY SUFFERED INJURIES SIMILAR TO MILITARY COMBAT VICTIMS. SHE HAD A VERY SEVERE OPENED FRACTURE OF HER RIGHT LOWER EXTREMITY, JUST A DEVASTATING INJURY AS WELL AS FRACTURES OF BOTH OF HER THIGH BONES AND ALSO OF HER RIGHT SHOULDER AND A PELVIC FRACTURE. Reporter: DR. WARD INSERTED METAL RODS TO SAVE HER LEFT LEG AND MOST OF HER RIGHT LEG, BUT IN THE END HE HAD TO AMPUTATE. IN HER LONG RECOVERY FIRST AT CHILDREN'S HOSPITAL AND THEN AT THE CHILDREN'S INSTITUTE SYDNEY HAD TO LEARN HOW TO WALK, TO CLIMB STEPS AND TO RUN WEARING HER PROSTHETIC LEG. PUSHING HERSELF, SHE SAYS, WITH HER PARENTS AS HER BACKBONE AND A GREAT SUPPORT SYSTEM. I HAD A LOT OF PEOPLE WHO WERE THERE FOR ME, LIKE THROUGH EVERYTHING. LIKE I HAD MY ONE FRIEND JOSLYN, WHEN I WAS IN REHAB SHE STAYED WITH ME FOR TWO WEEKS. DID NOT GO HOME. SHE LIVED IN THE HOSPITAL ROOM WITH ME BECAUSE LIKE THAT'S WHAT I NEEDED. I STILL CAN'T BELIEVE THAT SHE DID THAT. NEARLY FOUR YEARS LATER SYDNEY IS DRIVING, EXERCISING AND EVEN PLAYS SOFTBALL. HER MEDICAL TEAM MARVELS AT SYDNEY'S IMPROVEMENTS AND HER WILL TO SUCCEED. WHAT'S MOST UNUSUAL IS THE WAY SYDNEY HAS RESPONDED. I MEAN, SHE REALLY, FROM THE DAY I MET HER, HAS HAD A GREAT ATTITUDE. I HAVE NEVER SEEN HER DOWN FOR ONE SECOND REALLY, AND SHE'S JUST BEEN A TROOPER THROUGH IT ALL. Reporter: THAT POSITIVE ATTITUDE IS NOW FUELING HER CAREER INTEREST. LOOK AT HER WALK. Reporter: SYDNEY SAYS BECAUSE OF DR. WARD AND THE WAY SHE WAS TREATED IN HER RECOVERY SHE'S STUDYING PRE-MED AT IUP AND WANTS A CAREER IN ORTHOPEDIC MEDICINES, SHOWING HER PARENT SHE WILL MAKE THE MOST OF THIS SECOND CHANCE. LIKE MY GOAL IN LIFE, ALL I WANT TO DO IS TO MAKE MY PARENTS CROWD, GOING TO GET TO WHERE I WANT TO GO IN LIFE SO IT WILL ALL BE WORTH IT IN TEN YEARS WHEN I HAVE MY DREAM JOB. Reporter: DR. WARD SAYS SHE'S WELL ON HER WAY, FOR SURE. I THINK SHE CAN DO IT, AND IT WOULD BE TREMENDOUS. Reporter: HELPING OTHERS IN THEIR JOURNEY BACK. BECAUSE I HAVE SUCH LIKE A PERSONAL CONNECTION SO I THINK IF I COULD GET INTO SOMETHING LIKE THIS, LIKE SAY SOMETHING HAPPENED -- A SIMILAR SITUATION I'D BE ABLE TO PERSONALLY CONNECT WITH THE PATIENT. Reporter: SO YOU THINK YOU'RE GOING TO DO IT? YES, I THINK IT WILL BE REALLY AWESOME. Reporter: ANOTHER VIRTUAL HIGH FIVE, SYDNEY, WAY TO GO. THE REASON SYDNEY WANTS TO SHARE